I'm sorry I clicked 'suppress' but only because of potential sensitivities due to observed Gang-gang interest in this hollow. I observed a Sulphur-C.C. taking an interest in the hollow, but it doesn't appear to be breeding in it. Surely if Gang-gangs were breeding in it this year they would have launched a defence. Nevertheless, we know the Gang-gangs do take a strong interest in this hollow, and we can continue to observe it in future years....